Nearly half of all deaths from heart disease, stroke and type 2 diabetes may be due to diet, a new study finds. In 2012, 45 percent of deaths from "cardiometabolic disease" — which includes heart disease, stroke and type 2 diabetes — were attributable to the foods people ate, according to the study. This conclusion came from a model that the researchers developed that incorporated data from several sources: The National Health and Nutrition Examination Surveys, which are annual government surveys that provide information on people's dietary intakes; the National Center for Health Statistics, for data on how many people died of certain diseases in a year; and findings from studies and clinical trials linking diet and disease.